CÔNG THỨC NGHIỆM-HỆ THỨC VI-ET

CÔNG THỨC NGHIỆM-HỆ THỨC VI-ET

9th Grade

15 Qs

quiz-placeholder

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CÔNG THỨC NGHIỆM-HỆ THỨC VI-ET

CÔNG THỨC NGHIỆM-HỆ THỨC VI-ET

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Medium

Created by

Ty Tran

Used 38+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phương trình  x2 +4x-m=0 có nghiệm khi:

m>-4

m<4

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Phương trình x2+5x-6=0 có nghiệm là:

1; 6

1; -6

-1;6

-1; -6

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Phương trình x2+4x-m=0 vô nghiệm khi

m=4

m<-4

m>-4

m=-4

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Phương trình x2+4x-m=0 có nghiệm kép khi

m=4

m=-4

m=8

m=-8

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Phương trình x2+2mx-5=0 có bao nhiêu nghiệm

0

1

2

vô số

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